Home / 29,240.39-40,351.67-15,811.61

Finding the Fourth Proportional to 29,240.39, 40,351.67 and 15,811.61

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Solution

The fourth proportional to 29,240.39, 40,351.67 and 15,811.61 is: 21,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,240.39 : 40,351.67 = 15,811.61 : x
  2. Step 2: Convert to fraction form
    29,240.39/40,351.67 = 15,811.61/x
  3. Step 3: Cross multiply
    29,240.39x = 40,351.67 × 15,811.61
  4. Step 4: Simplify right side
    29,240.39x = 638,024,647.37
  5. Step 5: Solve for x
    x = 638,024,647.37/29,240.39
  6. Step 6: Final answer
    x = 21,819.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.